How does an IP PBX / VoIP telephone system work?


IP PBX: How does an IP PBX / VoIP telephone system work?


A VoIP telephone system / IP PBX system consists of one or more SIP phones / VoIP phones, an IP PBX server and optionally includes a VoIP Gateway.

The IP PBX server is similar to a proxy server:

SIP clients, whether software-based or telephone, are registered on the IP PBX server, and when they want to make a call, they ask the IP PBX to create the link.

The IP PBX has a list of all phones/users and their respective SIP addresses, and is, therefore, able to connect an internal call or route an external


Ti is the IP PBX and what its advantages


An IP PBX is a VoIP call center that is deployed on a software program that you install on a PC.

This program essentially replaces all the hardware infrastructure of a classic call center, which gives each VoIP call center a lot of advantages over classic call centers.


All the features and benefits of an IP PBX are at your disposal via a Virtual IP PBX without having to install any special equipment.

You can have a modern VoIP call center and manage it quickly over the Internet.

Read more about the Virtual IP PBX as well as its benefits.


Anyone with computer knowledge can install and configure a VoIP Call Center.

There is no need for a dedicated technician for this purpose, which is essential in classic call centers.

What’s more, just to install a software program is a computer.


Each VoIP PBX has an interface that allows us to configure and manage our network.

Classical telephone networks do not usually have user-friendly interfaces and are designed in such a way that the installer can manage them.


Telephony works directly from computer network (LAN) wiring.

VoIP telephony systems are an open standard and all modern VoIP phone systems use SIP as a protocol. This means you can use almost all types of VoIP Phones, Ata adapters without any problems. Instead, a classic telephone system often requires unique costly telephone solutions, the expansion units that will be needed to expand the capabilities of the telephone network.


Because a VoIP PBX is based on software, it is much easier for software developers to develop-add and improves their features. Most VOIP phone systems come with a variety of features (such as call routing, voicemail, call waiting), which in most cases is particularly costly in classic call centers.


By choosing a VOIP provider to make outgoing calls you can have a significant financial benefit over classic telephony.

All calls to local/long distance, international calls even to mobiles cost a lot less. Also, calls between numbers of the same VoIP provider are usually calls made entirely free of charge.

So what do you think, Is PBX is an excellent device to install?

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